"The Feb. 1 blaze at the Martinez Refining Company sent a large plume of black smoke over Martinez and released more than 7,000 gallons of hydrocarbon materials. Some of the chemicals released in the fire can cause cancer, heart and lung disease" https://www.eastbaytimes.com/2025/06/05/martinez-refinery-fire-lack-of-contractor-personnel-insufficient-training-supervision/?